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The Costs of Diabetic Foot
The Economic Case for the Limb Salvage Team
In 2007, the treatment of diabetes and its complications in the United States generated at least $116 billion in direct costs; at least 33% of these costs were linked to the treatment of foot ulcers. Although the team approach to diabetic foot problems is effective in preventing lower-extremity amputations, the costs associated with implementing a diabetic-foot–care team are not well understood. An analysis of these costs provides the basis for this report.
Diabetic foot problems impose a major economic burden, and costs increase disproportionately to the severity of the condition. Compared with diabetic patients without foot ulcers, the cost of care for those with foot ulcers is 5.4 times higher in the year after the first ulcer episode and 2.8 times higher in the second year. Costs for treating the highest-grade ulcers are 8 times higher than are those for treating low-grade ulcers. Patients with diabetic foot ulcers require more frequent emergency department visits and are more commonly admitted to the hospital, requiring longer lengths of stay. Implementation of the team approach to manage diabetic foot ulcers in a given region or health-care system has been reported to reduce long-term amputation rates 62% to 82%. Limb salvage efforts may include aggressive therapy such as revascularization procedures and advanced wound-healing modalities. Although these procedures are costly, the team approach gradually leads to improved screening and prevention programs and earlier interventions and, thus, seems to reduce long-term costs.
To date, aggressive limb preservation management for patients with diabetic foot ulcers has not usually been paired with adequate reimbursement. It is essential to direct efforts in patient-caregiver education to allow early recognition and management of all diabetic foot problems and to build integrated pathways of care that facilitate timely access to limb salvage procedures. Increasing evidence suggests that the costs of implementing diabetic foot teams can be offset in the long term by improved access to care and reductions in foot complications and amputation rates. (J Am Podiatr Med Assoc 100(5): 335–341, 2010)
Background: We used a model of lower-extremity ulceration to determine the impact of a podiatric lead limb preservation team on identified relationships among risk factors, predictors of ulceration, amputation, and clinical outcomes of lower-extremity disease in patients with diabetes mellitus.
Methods: A total of 485 patients with diabetes mellitus were randomly selected from the diabetic population and included in this retrospective cohort study. Patients were then stratified into two groups: those who received specialty podiatric medical care and those who did not. Data covering a 5-year period were collected using electronic medical records and chart abstraction to capture detailed treatment characteristics, ulcer status, and surgical outcomes.
Results: Overall, the frequencies of inpatient and outpatient encounters and the durations of hospital stays were significantly greater with increasing wound depth and in the presence of infection. In addition, the overall ulcer incidence was greater in patients with callus (34.3% versus 10.3%, P < .0001) with and without neuropathy (20.4% and 4.1%, P < .0001). Among patients treated in a specialty multidiscipline podiatric medical setting, the proportion of all amputations that were “minor” was significantly increased (33.7% versus 67.3%, P = .0006), and survival was significantly improved (19.5% versus 7.7%, P < .0001).
Conclusions: Early identification of individuals at increased risk for lower-extremity ulceration and subsequent referral for advanced multidiscipline podiatric medical specialty care may decrease rates of ulceration and proximal amputation and improve survival in patients with diabetes mellitus who are at high risk for ulceration and limb loss. (J Am Podiatr Med Assoc 100(4): 235–241, 2010)